Public water system · WI4590012
ActiveGreen Valley Dairy LLC
At a glance
Green Valley Dairy LLC (PWSID WI4590012) is an active non-transient non-community water system in Shawano County, Wisconsin. It reports serving 45 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
45
Service connections
3
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Green Valley Dairy LLC compare with other water systems in Shawano County?
By EPA's size categories, Green Valley Dairy LLC is a very small system (500 people or fewer). Shawano County has 116 active public water systems. Its population served is well below the county average of 210 people per system, and accounts for 0.2% of the 24,399 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Green Valley Dairy LLC is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Wisconsin has 891 active non-transient non-community water systems, 8.1% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Green Valley Dairy LLC?
EPA lists Green Valley Dairy LLC as privately owned. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 100 of the 116 active systems in Shawano County (86%) are also privately owned.
Does Green Valley Dairy LLC have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2010. The violations listed here began between July 2009 and October 2010. By type: 11 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Arsenic, Xylenes, Total, p-Dichlorobenzene and Chlorobenzene. EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Green Valley Dairy LLC: frequently asked questions
Who runs Green Valley Dairy LLC?
Green Valley Dairy LLC (PWSID WI4590012) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Green Valley Dairy LLC serve?
Green Valley Dairy LLC reports serving 45 people through 3 service connections in Shawano County, Wisconsin.
Where does Green Valley Dairy LLC get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Green Valley Dairy LLC have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2010. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Green Valley Dairy LLC's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2010. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Green Valley Dairy LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Green Valley Dairy LLC is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Shawano County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Shawano Waterworks | Shawano | 9,610 | Community | Groundwater |
| Shawano Lk San Dist 1 | Shawano | 4,950 | Community | Groundwater |
| Bonduel Waterworks | Shawano | 1,475 | Community | Groundwater |
| Wittenberg Waterworks | Shawano | 1,200 | Community | Groundwater |
| Birnamwood Waterworks | Shawano | 832 | Community | Groundwater |
| Tigerton Waterworks | Shawano | 705 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Green Valley Dairy LLC, PWSID WI4590012, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/green-valley-dairy-llc-wi4590012 (data as of October 1, 2026).